| 释义 |
third rail
释义
第三轨：指与火车轨道平行的金属棒，为某些类型的火车供电。
例句
1·You know this is the third rail , right?
你知道这是第三根铁轨对吧？
2·In some cities, a third rail provides power to a subway train, usually operating underground; electricity passes through the rail.
在一些城市，第三道铁轨(电动机车的输电轨)给通常在地下运行的地铁列车供电，电力通过这道铁轨传输。
3·That is a slightly lower proportion than in Greece or Sweden, but far higher than in America, where raising fuel taxes is nonetheless said to be a "third rail ", deadly to politicians.
比希腊和瑞典低一些，但是远远的高于美国。在美国，提高燃油税就像是第三铁道，对于政客来说是致命的。
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